Highest upside is a bit of a toss-up for me… if Riddick were to go down (which he very well may), Abdullah would likely be THE 3-down back in Detroit since he’s an adequate pass-catcher and good between-the-tackles runner, making him rather valuable.

On the flip side - if Howard went down, there’s little change Cohen could support an every-down workhorse role, thus limiting his upside.

Assuming health all-around, though, I think Cohen has the better upside with the Bears likely to be in pass-first and checkdown mode early and often.